﻿using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Data.SqlClient;
//using Excel = Microsoft.Office.Interop.Excel;
using System.Reflection;
using System.IO;
using System.Diagnostics;


namespace template_dll
{
    public partial class ChildForm : Form
    {
        public ChildForm()
        {
            InitializeComponent();
        }

        private SqlConnection pharmolapdw = new SqlConnection();
        private SqlConnection allpricedw = new SqlConnection();
        public DataTable dt_drugs;
        public DataTable dt_brand;
        public DataTable dt_suppl;
        public DataTable dt_pharm;
        public DataTable dt_drug_tmp;
        public DataTable dt_rep = new DataTable();
        private const string namechcol = "Флаг";
        private Guid guid;
        private delegate void Deleg();
        private Deleg del;
        private bool showres = true;
        private int cur_baseid = 0;
        private int cur_cityid = 0;

        private string GetServ(string filename)
        {
            string str = "";
            using (StreamReader streamReader = new StreamReader(filename))
            {
                while (!streamReader.EndOfStream)
                {
                    str += streamReader.ReadLine();
                }
            }
            return str;
        }

        public static bool DisplayForm(System.Windows.Forms.Form theMDIParent)
        {
            ChildForm f = new ChildForm();
            f.MdiParent = theMDIParent;
            f.WindowState = FormWindowState.Maximized;
            f.Show();
            return true;
        }

        private void ChildForm_Load(object sender, EventArgs e)
        {
            try
            {
                pharmolapdw.ConnectionString = @"Server=" + GetServ("serv.txt") + ";Database=PharmOLAPDW;Integrated Security=True";
                allpricedw.ConnectionString = @"Server=" + GetServ("serv.txt") + ";Database=AllPriceDW;Integrated Security=True";

                guid = Guid.NewGuid();
                dataGridView1.DataSource = dt_rep.DefaultView;
                dateTimePicker1.Value = DateTime.Now.AddDays(-1).Date;
                dateTimePicker2.Value = DateTime.Now.AddDays(-1).Date;

                pharmolapdw.Open();
                allpricedw.Open();
                SqlCommand com = pharmolapdw.CreateCommand();
                com.CommandText = "pas_BaseMASel";
                DataTable dt_base = new DataTable();
                dt_base.Load(com.ExecuteReader());

                if (dt_base.Rows.Count > 0)
                    foreach (DataRow row in dt_base.Rows)
                    {
                        NewItem ni = new NewItem();
                        ni.ParamID = Convert.ToInt32(row[0]);
                        ni.ParamComment = row[1].ToString();
                        comboBox1.Items.Add(ni);
                    }
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
        }

        private void button4_Click(object sender, EventArgs e)
        {
            if (comboBox1.SelectedIndex > -1)
            {
                cur_baseid = (comboBox1.SelectedItem as NewItem).ParamID;
                if (comboBox2.SelectedIndex > -1) cur_cityid = (comboBox2.SelectedItem as NewItem).ParamID;
                else cur_cityid = 0;
                dataGridView1.DataSource = null;
                dt_rep.Clear();
                del = new Deleg(CreateRep);
                this.Text += " Формируется";
                IAsyncResult asyncRes = del.BeginInvoke(new AsyncCallback(CallBackFunc), null); //
                panel1.Enabled = false;
                dataGridView1.Enabled = false;
            }
            else
            {
                MessageBox.Show("Не выбрана база");
                comboBox1.Focus();
            }
            //CreateRep();
        }

        private void CallBackFunc(IAsyncResult aRes)
        {
            del.EndInvoke(aRes);
            panel1.Invoke((Func<bool>)(() => panel1.Enabled = true));
            dataGridView1.Invoke((Func<bool>)(() => dataGridView1.Enabled = true));
            this.Invoke((Func<string>)(() => this.Text = this.Text.Replace(" Формируется", "")));
            if (dt_rep.Rows.Count > 100000) showres = false;
            if (showres)
                dataGridView1.Invoke((Func<object>)(() => dataGridView1.DataSource = dt_rep.DefaultView));
            else
            {
                string countrows = "содержит более 100тыс. записей,\nрезультат не будет отображаться,\nно данные получены\nи могут быть экспортированы в excel";
                checkBox6.Invoke((Func<bool>)(() => checkBox6.Checked = false));
                MessageBox.Show(countrows, "Отчет сформирован");
            }
        }

        private void CreateRep()
        {
            if (allpricedw.State == ConnectionState.Closed) allpricedw.Open();
            try
            {
                dt_rep.Clear();
                dt_rep.Load(RepProc(allpricedw, dateTimePicker1, dateTimePicker2, cur_cityid, cur_baseid));
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.ToString());
            }
        }

        private SqlDataReader RepProc(SqlConnection sqlcon, DateTimePicker dtp1, DateTimePicker dtp2,int cityid,int baseid)
        {
            SqlCommand sqlcom = sqlcon.CreateCommand();
            sqlcom.CommandType = CommandType.StoredProcedure;
            sqlcom.CommandText = @"pas_MinPriceInMonth";
            sqlcom.CommandTimeout = 300;

            sqlcom.Parameters.AddWithValue("@dateB", dtp1.Value);
            sqlcom.Parameters.AddWithValue("@dateE", dtp2.Value);
            sqlcom.Parameters.AddWithValue("@cityid", cityid);
            sqlcom.Parameters.AddWithValue("@baseid", baseid);

            return sqlcom.ExecuteReader();
        }

        private SqlDataReader GetBrandTree(SqlConnection sqlcon)
        {
            SqlCommand com = sqlcon.CreateCommand();
            com.CommandType = CommandType.StoredProcedure;
            com.CommandText = @"pas_BrandTreeSel";

            return com.ExecuteReader();
        }

        private void button3_Click(object sender, EventArgs e)
        {
            try
            {
                PharmFilter.PharmFilter f3 = new PharmFilter.PharmFilter();

                if (dt_pharm == null)
                {
                    if (pharmolapdw.State == ConnectionState.Closed) pharmolapdw.Open();
                    SqlCommand myCommand = pharmolapdw.CreateCommand();
                    myCommand.CommandType = CommandType.StoredProcedure;
                    myCommand.CommandText = @"pas_PharmSel";
                    dt_pharm = new DataTable();
                    dt_pharm.Load(myCommand.ExecuteReader());
                    foreach (DataColumn dc in dt_pharm.Columns)
                    {
                        if (dc.ColumnName != namechcol) dc.ReadOnly = true;
                        else dc.ReadOnly = false;
                    }
                }
                f3.namechcol = namechcol;
                f3.Text = "Фильтр по аптекам";
                f3.sortcoumn = "Аптека";
                f3.dataGridView1.DataSource = dt_pharm.DefaultView;
                f3.ShowDialog();
                f3.Close();
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.ToString());
            }

        }

        private void button5_Click(object sender, EventArgs e)
        {
            SaveFileDialog sfd = new SaveFileDialog();
            sfd.FileName = "прайс с минимальными ценами региона";
            sfd.Filter = "Файл CSV | *.csv";
            if (sfd.ShowDialog() == DialogResult.OK)
            {   
                SaveDGVToCSVfile(sfd.FileName.ToString(), dt_rep, checkBox6.Checked);
            }
        }

        public static bool SaveDGVToCSVfile(string filename, DataTable table, bool openInExcel)
        {
            try
            {
                StreamWriter sw = new StreamWriter(filename, false, Encoding.Unicode);

                List<int> col_n = new List<int>();
                foreach (DataColumn col in table.Columns)
                {
                    sw.Write(col.ColumnName + "\t");
                    col_n.Add(col.Ordinal);
                }
                sw.WriteLine();
                int x = table.Rows.Count;
                
                //if (table.AllowUserToAddRows) x--;

                for (int i = 0; i < x; i++)
                {
                    for (int y = 0; y < col_n.Count; y++)
                        sw.Write(table.Rows[i].ItemArray[col_n[y]].ToString() + "\t");
                    sw.Write(" \r\n");
                }
                sw.Close();
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "Ошибка!", MessageBoxButtons.OK, MessageBoxIcon.Stop);
                return false;
            }

            if (openInExcel)
            {
                try
                {
                    Process newProc = Process.Start("excel.exe", "\"" + filename + "\"");
                }
                catch (Exception ex)
                {
                    MessageBox.Show(ex.Message, "Ошибка!", MessageBoxButtons.OK, MessageBoxIcon.Stop);
                }
            }
            else
                MessageBox.Show("Данные экспортированы");
            return true;
        }

        private void dateTimePicker2_ValueChanged(object sender, EventArgs e)
        {
            if (dateTimePicker2.Value <= dateTimePicker1.Value) dateTimePicker1.Value = dateTimePicker2.Value;
        }

        private void dateTimePicker1_ValueChanged(object sender, EventArgs e)
        {
            if (dateTimePicker2.Value <= dateTimePicker1.Value) dateTimePicker2.Value = dateTimePicker1.Value;
        }

        private void splitContainer2_SplitterMoved(object sender, SplitterEventArgs e)
        {

        }

        private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
        {
            try
            {
                comboBox2.Text = "";
                comboBox2.Items.Clear();
                if (pharmolapdw.State == ConnectionState.Closed) pharmolapdw.Open();
                SqlCommand com = pharmolapdw.CreateCommand();
                com.CommandText = "pas_CitySel";
                DataTable dt_city = new DataTable();
                dt_city.Load(com.ExecuteReader());

                if (dt_city.Rows.Count > 0)
                    foreach (DataRow row in dt_city.Rows)
                    {
                        if (row[3].ToString() == comboBox1.Text)
                        {
                            NewItem ni = new NewItem();
                            ni.ParamID = Convert.ToInt32(row[1]);
                            ni.ParamComment = row[2].ToString();
                            comboBox2.Items.Add(ni);
                        }
                    }
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
        }

    }
}
